Sulky revolving rake



(NdMoael.)

- H. HITCHCOCK.

. Sulky Revolvinglake.

Patented May 3,1881.

N. PETERS, Fhowhogmpncr. Washngon. D. C.

7FCE.

arnNr HENRSr HITCHCOCK, OF LYONS, MICHIGAN.

sULKY REVOLVING'RAKE.

SPECIFICATION forming part of- Letters Patent No. 241,013,v dated May 3, 1881.

Application tiled January 3, 1881.

To all whom it may concern:

Be it known that I, HENRY Hrroncoex, ot' Lyons, in the county of Ionia and State ot' Michigan, have invented an Improvement in Sulky Revolving Rakes, ot1 which the following is a specification.

My invention relates to improvements` in sulky revolving rakes; and it consists in the peculiar construction and arrangement of the parts, as hereinafter morefully set forth.

Figure lis a vertical longitudinal section on the line y y in Fig. 2. Fig. 2 is a plan ot' a part ofthe device, both sides ofthe device from the center being alike. Fig. 3 is a perspective view of one oi' my sliding boxes. Fig. 4 is a side elevation of the same, showing cam-head on rake-shaft. Fig. 5 is a detached perspective view of the cam-head on rake-shaft. Fig. Gis a cross-section through the rake-head, showin g method ot' securing the spring-teeth thereto.

In the accompanying drawings, which form a part of this specification, Ais a frame which carries the operating parts ot' the machine. This frame is pivotally' secured, by eyebolts a, hinges, or other suitable devices, to the frame B, to which the axle C is rigidly secured, the former frame resting prone upon the latter and extending to the rear, as shown in Fig. 1.

D are the hounds, to which the draft-tongue (not shown) is secured.

E are the traction-wheels, journaled in any ot' the known ways to the axle at each end thereof.

F are pulleys, secured and adapted to rotate with the traction-wheels. Belts G convey motion from these pulleys to the pulleys H, one

of which is secured to each end of the rakehead I. Each end of this rake-head is journaled in a box, J. These boxes are composed of the bed-box b and the cap c, hinged at one end to the bed-box, as shown in Fig. 3, and when the parts are in place the cap is held rigidly by the stud d, secured to the bed-box and passing up through cap, where a key, e, passing through a slot in the stud-bolt, locks the two parts of the box together. These boxes slide in ways K secured to the top ot` the rearwardprojecting ends of the frame A. A swivel, h, is pivotally secured to the front end of each of these boxes, and to the swivel is connected a rod, i, by means ot' two nuts, 7c 7c', in such (No model.)

manner that the connection may be adjusted as to its length, and the opposite end ot' the rod is connected to the crank l on the end of the rock-shaft L, which is ]'ournaled in suitable bearings m on top ofthe frame A.

A foot-lever, M, within easy reach of the operator on the seat N, and secured to the rock-shaft, when depressed, as shown in Fig. 1, forces the boxes in the slides to the rear, thereby tightening the belts Gr and compelling them to communicate a rotary motion to the rakehead. When the pressure is removed from the lever the spring a compels the lever to assume the position shown in dotted lines in Fig. l, thus retractin g the boxes in the slides, by which means the belts are slackencd and the rotation ot' the rake-head is stopped. The bottom edge ot' the boxes J is provided with a ratchet, o, and a spring-pawl, p, engages with the teeth ot' this ratchet, being compelled thereto by the spring q. A bell-crank is pivotally secured to the fra-me A, the shorter arm r ot' said crank being pivoted to the link s, which, in turn, is pivoted to the bed-box b, while the longer arm t hangs free, with its free end terminating in an outwardly-projecting flange, a.

O is a cam-wheel, secured near one end of the rake-head, and its hook o is designed to engage with the ange u of the bell-crank. The cam-wheel is also provided with a camtlange, w, which is designed, when the rakehead is rotated, to engagewith and depress the spring-pawl p and free its engagement with the ratchet.

In Fig. 2 the rake-head is shown in its position after the teeth P have deposited the windrow and the rake has commenced its rotation, which brings the rear side of the rake-head to thetop. To secure the teeth in place a series of hook-shaped bolts, R, are driven at regular intervals through the head. The Wire torming the teeth is bent around the bolt between the nut S andthe face of the head; thence it passes around the head and through the hook of the bolt, as shown in Figs. l and 6, and thence under the beam toward the rear, and terminates in the proper curve forits purposes.

It will be noticed in Fig. 6 that the hook of the bolt will prevent any lateral displacement of the tooth, while at the same time it will allowr the teeth to spring or have a fore-and-aft IOO movement between the end of the hook and the side of the head, and by this means a greater ilexibility to the teeth is obtained and the liability of breakage is greatly diminished.

'l is a caster-wheel swiveled to the curved standard V, which passes forward over the axle C and beneath the frame A, and its forward end is pivoted to the under side of said frame at x.

W is a cam-lever pivoted with-in the frame A and projecting through the slot y in the same to engage with the standard V. By drawing this lever to the rear the cam raises the frameA and, of course, the rake, and thereby the operator is enabled to control the height of the rake-teeth from the ground at will.

The caster-wheel also serves to keep the device level and steady when one of the tractionwheels is running in a dead furrow.

In practice, when the rake is in operation the hook o of the cam-wheel O is engaged with the flange u of the crank-arm, to prevent any rotation of the rake-head, and the boxes J are retracted in their slides toward the iront of the machine, with thclever M in the position shown in dottedlines in Fig. l. As the teeth become h'lled with hay and the driver wishes to dump, he depresses the lever M, which projects the boxes J to the rear, where the spring-pawl p secures them by engaging with the ratchet. The same movement ofthe lever, in addition, disengages the flange u from the hook o, and the belts being tightened the motion of the pulleys F is communicated to the rake-head, and the rake commences its rotation rearward, u pward, and forward until it has reached a point forward of the center of gravity, when the flange-cam w will depress the spring-pawl and release the boxes J. The lever M being relieved from pressure, the spring u compels it to assume its original position, thereby retracting the boxes J, and throwing the arm t ofthe bell-crank into position to engage with the hook fv, thus slackeningthe belt and causing its action in revolving the rake-head to cease, the further entire revolution of the rake-head being completed by the gravity of the raketeeth, which fall rapidly to the ground. By

this construction the rake-head is partiallyrevolved by means ofthe devices above described, the latter part of the revolution being-effected independently of the motion of the drivingwheel by the weight of the teeth, which will cause the rake to revolve with more rapidity than when connected to the driving-gearing, especially when the driving-wheel is turning a corner and not revolving, or revolving but slowly.

lVhat I claim as my invention isl. The combination, with the traction-wheels E, havin'g the belt-pulleys F secured thereto, and rake-head I, having teeth arranged on one side only of said head, and carrying the beltpulleys H, ofthe belts Gr, sliding boxes J, rockshaft L, having end cranks, l, lever M spring n, and connecting-rods i, substantially as described.

2. The combination, with the sliding boxes J, carrying the bearings ofthe rake-head and ways K, of the rock-shaft L, having the end cranks, l, lever M, spring n, and connectingrods i, substantially as described, and for the purpose set forth.

3. As a means of securing the sliding boxes J of a sulky spring-tooth revolving rake in position when projected, the ratchet o, springpawlp, and spring q, substantial! y as described.

4. As a means of releasingtheprojccted sliding boxes J of a sulky spring-tooth revolving rake, the flange-cam fw, upon the cam-wheel 0, in combination with the ratchet o, spring-paw! p, and spring g, substantially as set forth.

5. In a sulky spring-tooth revolving rake, and in combination with the rake-head and sliding' boxes, the cam-wheel 0, provided with hook-cam o, the bell-crank, and flange-stop u thereon, substantially as and for the purposes specified.

6. rlhe combination, with the rake-head I, and screw-boltR driven through said head and provided with a hook on its forward end and a nut on its rear end, ofthe spring-tooth P, provided with a loop at its upper end, passing over the rear end of the bolt, and secured to the rake-head and bolt by the nut, and thence passing through the hook in the loop, substantially as described, and for the purpose set forth.

HENRY HITCHCOCK. Witnesses:

H. S. SPRAGUE, E. W. ANDREWS. 

